Voltage and Frequency Control of Stand Alone Self-Excited Induction Generator Using Photovoltaic System Based STATCOM

Abstract

This paper proposes the photovoltaic (PV) interfaced static synchronous compensator (STATCOM) for voltage and frequency control of wind turbine driven self-excited induction generator (SEIG) system. The PV interfaced STATCOM mainly is used for sustainable control of load voltage and frequency of the SEIG system. In addition, PV based STATCOM acts as reactive power compensator, harmonic eliminator and load balancer under balanced/unbalanced nonlinear loads. The energy storage system is incorporated to PV based STATCOM to sustain the active power under variable wind power. The proposed control method extracts the reference current with the use of fuzzy logic controller (FLC) employed in alternating current (AC) voltage control loop. The proposed topology utilizes the PV energy with an energy storage unit to meet the active power requirement of the wind power generating system. Besides, it exports the power generated in the PV system to the load during the unavailability of wind. The PV based STATCOM controlled SEIG system is subjected to different types of loads in order to assess the performance of the system under steady-state and dynamic conditions. The results obtained from the simulation and experimental setup are analyzed to ensure the performance of the proposed controller.